Gkain-sepabatoe



MK. WHlTE.

GRAIN SEPARATQR- APPLICATION FILED AUG-30. 191?. 1 06,239. Patented June 10, 1919.

2 SHEETS-SHEET I.

co PHOYGLH'MOH wasnmcrwn u c.

J. K. WHITE.

GRAIN SEPARATOR. APPLICATION FILED Aue.o. 1917.

Pa-fented June 10, 1919.

m: mmms PETERS m. PNormLll'Ha. WASNINCJYON. u. c

JAMESK; WHITE, F SALINA, KANSAS.

GRAIN-SEPARATOR.

Toall whom it may concern:

Be it known that I, JAMES K. WHITE, a citizen of the United States residing at Salina, in the countyof Saline and State of Kansas, have invented certain new and useful Improvements in Grain-Separators, of which the following is a specification. 7

My invention relates to grain separators and has for its object to provide a device in which the grain is separated from the chaff and other light particles of matter by de livering the same in a stream of air 1nto a .member formed with a cavity, whereby the ,veniently driven from a machin e.

stream of air and stock is caused to have its direction of movement quickly changed so that the heavier particles such as the grain will be precipitated out of the a1r stream while the lighter particles, such as the chaff, travel with it and are discharged out of the Another object is to arrange the movable parts so that the same may be consingle shaft mounted in the machine. l

The full objects and advantages of my nventionwill appear in connection w1th the detailed description thereof and are par- 'ticularly pointed out in the claims.

In the drawings, illustrating the application of my invention-in one form,- v

Figure 1 is a vertical longitudinal sectional view of one form of my invention. Fig. 2. is a view similar to Fig. 1 of another form of the invention.

Inthe type of separator shown in Fig. 1, a pair of longitudinal beams 10 and 11 are employed which form the principal frame work of the machine. secured cross beams 12, 13 and 14 which carry at their centers boxes '15, 16 and 17 journaling asingle longitudinal shaft 18 ex tending throughout the length of the machine. Upon one end of the frame members 10 and 11 is-mounted a blower 19 which has a rotatable member 20 secured to shaft 18. The grain is first threshed by a toothed drum and concave or by any other suitable device, and the stock from the thresher which includes the chaff and any other matter to be separated fromthe grain is fed into the blower 19 at the suction opening 22 thereof through a spout 21. The same is then discharged in a stream of air from the blower 19 through a spout 23 into the upper I portion of a hollow deflector 24 which is positioned about shaft 18 with its axis in Specification of Letters Patent.

Upon these beams are Patented J time 10, 1919.

Application filed August 30, 1917. Serial No. 188,929.

other shape which would receive and sharply deflect the blast of air and material carried thereby. As will be noted the stock passes into the interior of the cone member which causes the air to be forced into the apex of the same and to have its direction of movement rapidly reversed, the air leaving the cone below its axis in a direction opposite to that in which it entered. This causes the grain to' be precipitated against the side of the cone and to be discharged from the bottom of the saine 'by gravity, while the straw and chafi are carried along with the stream of air away from the cone above the grain. To aid in this separation a sleeve 26 is employed which is secured to shaft 18 within cone member 24 and is provided with a plurality of radial fingers 27, whlch beat and stir up the stream of stock and air causing the heavy particles to more 'readlly pass out of the air stream and loosening any chaff which may cling to the through a spout31 as shown in Fig. 2 into any suitable kind of a receiver or into the open, if desired.

The lower portion of the casing 25 is formed open. at 32 and in this opening is positioned achafl'er 33 of ordinary construct1on comprising sides 34 interconnected by inclined slats 36. This chafier is given a reciprocating motion in a direction parallel w1th the shaft 18, which tends to forward any chaff which drops down upon the same, toward the blower inlet 28 where it will be drawn in and discharged with the remainder of the chaff. Any grain which falls upon the chafler readily passes directly through it and upon a shaking shoe 35. This shoe comprises sides 37 which reach up nearly to the sides 34 of chatter 33 and which are 24 near the upper periphery at its base 7 connected on the bottom by cross pieces 38 which support a perforated metal screen 39. As the grain comes in contact with this screen the same immediately passes through the perforations in it and upon a hopper 40 connected with a spout 41, while the last traces of chaff and straw which may have passed through chafier 33 are discharged over the tail end of the shoe.

I have found that by agitating the con member 24 that better results can be obtained. This can be done by securing the same to'the sides 34 of the chaffer 33 and having it shake with said chaffer, or by employingseparate shaker means as desired. The method of shaking said chaffer and shoeis explained as follows: The chaffer frame 34 and cone 24 are hung by a number of links 42 which are'pivoted to them and "to the undersides of the two frame members 10 and 11. Similarlythe'shoe 35 is hung on links 43 also pivoted to said frame members. In back of the blower 29 are secured to frame members 10 and 11 a pair of depending brackets 44 in which, is journaled a rocking bar 45 which has mounted on it a bell crank-145 having three arms 46, 47 and 48. Two of these ferredto as a cone member, it becomes evident that any device may be employed which is formed with a cavity adapted to quickly change the direction of movement of theair stream and so efiect a separation of the grain and lighter substances.

Theform of the invention shown in Fig.

2 differs only in the location of the two blowers 19 and 29. In this case both of these blowers are positioned adjacent each other at the end of the machine opposite the cone member 24, the blower 19 being reversed so that the feed of the stock into the machine occurs in the opposite direction. Here a feeding spout 53 is employed which makes but a slight bend in directing the stock into the cone member 24 which eliminates the additional friction caused by the return bend shown in Fig. 1. However,

the return bend aids in causing the grain to be forced into the lower portion of the air stream, thus reducing the distance the same must travel wlthln the cone before separation occurs.

The advantages of my invention are heavier particles to The other arm 46 is con-- for forcing a stream of air and stock into said cavity against said'end sothat the direction of said stream is rapidly changed forwardly and rearwardly to cause the be precipitated out of the air stream. a

2. A separator for grain comprising 'a member having a cavity therein substantially closed at one end,means for -projecting a'stream of air and stock intosai'd cavity so that the direction of the 's'ame is rapidly changed to cause the "heavier par 'ticles to be precipitated out of the air stream, and means forstirring up and-teating the grain and chaff which enters the cavity. 7 3. A separator for =grain comprising a member having a conical "cavity therein substantially closed at onef'end and means for projecting a's'tream o'fair and stuck into the upper portion of said conical -cavity so that the air is forced into the apex 'ofthe cone and caused to abruptly returawhe'reby the heavier particles are precipitatedout of the air stream, and a beaterpositioired'within the cone member ia'cting upon the grain as the same passes into and out o f said cone member. v

4. A separator-forgrain 'comprisinga member having a cavity therein, substantially closed at one end, a longitudinal shaft extending through "said member and the cavity therein, a blower mountedonf'said shaft for projecting a stream of air and stock into said cavity, andfa beaterf positioned on said shaft andjoperable within said cavity. I v j 5. A separator for grain com rising a member having a cavity therein substantially closed at oneend, a longitudinalshaft extending through said member 'an'd the cavity therein, a blower mounted on *said shaft for pro ecting a stream of air' and stock into said cavity, a beater positioned on said shaft and operable" within said cavity, and a second blower mounted on said shaft forwithdrawing the air and that? from the machine. V

6. A separator for grain comprising a member having a cavity which eenverges toward a substantially closed-endfthres'hing elements in said cavity, means for shaking said member, and means for forcing a stream of air and stock into the said cavity against said end so that *thedirectio'n'of said stream is rapidly changed to cause the said cavity,- and a second blower mounted heavier particles to be precipitated out of on said shaft for withdrawing the air and the air stream. chafi' from the machine, said blowers bein 7. A separator for grain comprising a mounted adjacent each other at the end 0 5 member having a cavity which converges the machine opposite the aforementioned 15 toward a substantially closed end, threshing member. elements in said cavity, a longitudinal In testimony whereof I hereunto aifix my shaft extending through said member and signature. cavity, a blower mounted on said shaft for 10 projecting a stream of air and stock into JAMES K. WHITE.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

